Retrieve event session IDs with changed venues

GET /api/v1/catalog/event/eventSessions/venue/changed

Returns the identifiers of event sessions whose venues have been changed since the partner's last synchronization call.

SOAP Equivalent: AWSP_GetLastCCVenueChange (see docs/AparteConnect2_Soap_Endpoints.md)

Examples

Success (200)

{
  "eventSessionIds": [184520, 184521, 184533],
  "totalUpdated": 3
}

Error 400 - Missing x-tenant header

{
  "type": "https://tools.ietf.org/html/rfc9110#section-15.5.1",
  "title": "Bad Request",
  "status": 400,
  "detail": "Tenant header 'x-tenant' is required but was not provided or could not be resolved.",
  "instance": "/api/v1/catalog/event/eventSessions/venue/changed",
  "correlationId": "1af3c1b2-9d2f-4f5d-9e36-4c2a8c1b7d9c",
  "timestamp": "2026-01-14T08:22:17.912Z"
}

Error 400 - Validation failed

This endpoint does not accept a payload, so validation errors are uncommon; the example illustrates the shared validation problem shape.

{
  "type": "https://tools.ietf.org/html/rfc9110#section-15.5.1",
  "title": "Validation Failed",
  "status": 400,
  "detail": "The request contains 1 validation error(s)",
  "instance": "/api/v1/catalog/event/eventSessions/venue/changed",
  "errors": [
    {
      "field": "tenant",
      "message": "Tenant header is required"
    }
  ],
  "errorCount": 1,
  "correlationId": "7c8d9ef1-3a2b-4d51-8f92-7f7a4a3c9b10",
  "timestamp": "2026-01-14T08:22:17.912Z"
}

Error 500 - Server error

{
  "type": "https://tools.ietf.org/html/rfc9110#section-15.6.1",
  "title": "An error occurred while processing your request.",
  "status": 500,
  "detail": "An unexpected error occurred.",
  "instance": "/api/v1/catalog/event/eventSessions/venue/changed",
  "traceId": "00-7c1f5d9c8a4b2f0e9d6c3b1a0e7d5c4b-1a2b3c4d5e6f7g8h-00",
  "correlationId": "f0e4c2d3-1b2a-4c5d-9e0f-1a2b3c4d5e6f",
  "timestamp": "2026-01-14T08:22:17.912Z"
}

SOAP to REST Field Mapping

REST Field	SOAP Field	Notes
eventSessionIds	ListIDCatalogContents	Identifiers of catalog contents (event sessions) with venue updates since the last synchronization call.
totalUpdated	ListIDCatalogContents count	Derived count of `eventSessionIds` returned in this REST response.

Retrieve event session IDs with changed venues

/api/v1/catalog/event/eventSessions/venue/changed

Examples​

Success (200)​

Error 400 - Missing x-tenant header​

Error 400 - Validation failed​

Error 500 - Server error​

SOAP to REST Field Mapping​

Request​

Responses​